simply because we love good food. freezing and cooling ... chilling and freezing303_5… · slow...

Simply because we love good food. Freezing and cooling tech-nology for the food industry.

2 Freezing & Cooling

The art of keeping food fresh, tasty and healthy. Cryogenic freezing and cooling.

CRYOLINE® is a registered trademark of the Linde Group.LIXSHOOTER™ is a trademark of the Linde Group.

Freezing & Cooling 3

In the fast-moving food industry of today, keeping up with the competition is of vital importance. Customers demand better and “newer” products almost every other day, and they also expect low prices and high availability. Being able to meet these demands means inventing new food products and using the best technology for processing them and keeping them fresh, tasty and healthy. With decades of experience as a food production supplier, we at Linde Gas are able to offer a wide variety of high-quality, state-of-the-art freezing and cooling equipment for the food industry.

Liquefi ed gases serve as excellent coolantsLiquid carbon dioxide and nitrogen can be stored at very low temperatures (CO2 at -78 °C, N2 at -196 °C). When these liquids vaporise in contact with warmer materials, they absorb a large amount of heat from them and turn into very cold gases. These gases can then be used to remove heat from other materials before being safely released into the atmosphere. This method, known as cryogenic freezing and cooling, has been in industrial use for over 40 years and is well known for producing high-quality frozen and chilled goods.


Advanced technology for better products.

Slow freezing can damage food productsWhen any foodstuff is frozen, there are three steps to this process. First, the temperature is reduced to the freezing point. The water in the foodstuff then turns into ice (this is also called the latent heat phase). Finally, the temperature is further reduced to the fi nal freezing point (usually -18 °C). Slow freezing, however, can damage food products because the process destroys their cells.

1. Free water surrounding the food cells is the fi rst to crystallise during slow freezing methods.

2. As soon as the water balance is de-stroyed, the water within the food cells starts to break out of the cells, destroy-ing the cell walls. The longer the freezing time the more cells are destroyed.

3. Finally, the ice crystals become so big that the cells are completely broken down, leading – among other disad-vantages – to a high degree of water loss when the product is defrosted or re-heated.

Higher quality through faster freezingBecause of the reasons explained above, the freezing process must be passed through as quickly as possible in order to reach high product qualities. By using fast cryogenic freezing, the water inside and outside of the cells freezes at the same rate, ensuring that the cells remain intact and the food keeps its freshness, fl avour and texture – as if it hadn’t been frozen at all.

The organic cell structure remains virtually unchanged when fast freezing technology is applied.


The benefi ts of freezing and cooling equipment by Linde Gas.

With our innovative equipment, freezing and cooling pro-cesses can be carried out quickly and effi ciently, signifi cantly increasing the output and making your products highly available. Moreover, faster refrigeration increases the IQF food quality (IQF = individually quick-frozen). And this in turn enables you to develop and lead the market with new, attractive food products.

When using our machinery, you can also profi t from a high degree of fl exibility: different types of freezers are available for a wide range of food products. And because they usually have a small footprint, they need only very little space.

– Fast freezing means higher production speed– Higher product quality than with slow cooling– Products lose less water when defrosted– Lower dehydration, higher yield– Flexible choice of models

Additional benefi tsWith professional equipment by Linde Gas, your company uses state-of-the-art technology for freezing and cooling a wide range of food products. Apart from increasing your out-put and product quality while keeping your production and maintenance costs low, our machines come with a number of additional benefi ts:

– Standard material readily available (in most countries also for rent)

– Most machines are delivered ready to use– Quick installations– Easy-to-use machinery– Start-up training for key personnel


Specially tailored services for the food industry.

Cryogenic freezing and cooling is one of our main business fi elds. Apart from various models of patented freezing and cooling equipment, we have developed a number of services in order to help you to maximise the benefi ts of this method.

Test centresIn order to provide a full service for the food industry, we demonstrate our cooling and freezing equipment at special test centres capable of simulating realistic production conditions. These facilities allow us to verify our theoretical calculations and show our customers the effi ciency and capabilities of our refrigeration technology. Our cooling and freezing test centres are available for every country where Linde Gas is present. Demonstrations based on your special requirements can be arranged easily and without delay.

Professional supportSpecially trained engineers are there to help you with every aspect of an installation, from the initial planning to the start-up phase. But our service doesn‘t stop there: once the equipment is in operation, our engineers will regularly check and – when necessary – optimise the whole installation.

With many years of practical experience and highly qualifi ed employees in the fi eld of freezing and cooling, we help our customers in the food in-dustry to increase the effi ciency of production processes, improve product qualities and raise their profi ts.

If you would like to know more about our freezing and cooling technology for the food industry, just contact your local Linde Partner.


Get in touch with Linde Gas.


Discover a wide variety of top-quality solutions. Standard freezing and cooling equipment.

CRYOLINE® MT tunnel freezerThis is a general-purpose, in-line tunnel freezer and cooler, combining state-of-the-art electronic controls with a high level of hygienic design. Adjustable, high-speed internal fans, controllable exhaust levels and gas injection make the use of cryogenic gases highly effi cient. The tunnel has an attractive, easy-to-clean outer design which covers all the motors and pipes.

Typical products:– Meat and meat products– Dairy products– Fish and seafood– Ready meals and other

convenience foods– Bakery products

CRYOLINE® MCThe CRYOLINE® MC is an extension of the CRYOLINE® MT tunnel freezer. It quick-freezes high-value isolated products using nitrogen at -186 °C in order to harden the surfaces of particularly delicate foodstuffs and to avoid deformation and agglomeration. After stabilisation, the product is deep frozen by a belt freezer and can then e.g. be glazed with water or packaged. The modules are entirely interconnected to ensure that all the cold gas from the immersion section is used.

Typical products:– Delicate free-fl owing products– Shrimp– All kinds of berries– Mushrooms– Cut vegetables

CRYOLINE® CF cabinet freezerThe CRYOLINE® CF is a multi-purpose freezing and chilling cabinet designed for batch production facilities such as bak-eries and ready meal lines. It features a modern touch-panel control system which offers fi ne control of all functions, providing high effi ciency as well as ease of use. The unit is designed for high levels of hygiene, making it easy to clean and reducing the risk of contamination. There is also the possibility to download information from the controller for traceability purposes.


convenience food– Bakery products


CRYOLINE® SC super contact freezerFor products which are diffi cult to handle, the CRYOLINE® SC in-line tunnel freezer uses a patented, disposable foil belt. The unit can easily freeze or cool liquid and/or marinated products or harden soft products (e.g. fi llets of fi sh or chicken) prior to fi nal freezing. Because the belt is dispos-able, it is possible to change products during the production cycle without having to clean it. Another advantage over mesh belts is that the foil is smooth, which is perfect for processing soft foodstuffs without belt marks.

Typical products:– Fillets of fi sh– Soft products such as pancakes– Tenderloin steaks– Purées– Liquid and semi-liquid products– Pasta products

CRYOLINE® PE pellet freezerThe patented CRYOLINE® PE uses a solid, stainless-steel belt with cavities to form pellets of liquid or semi-liquid foodstuffs – even with solids such as onions – before these are entirely deep frozen. The pellets are then transferred to a fi nal freezer to fi nish the process. The equipment can be used to make pellets of sauces for ready meals, so that the consumer can defrost just as much as he needs for a particu-lar recipe. The freezer is delivered in one piece, tested and immediately ready to use, which minimises installation and start-up time. The standard size of the pellets is 30 x 30 x 6 mm, but they can also be customised.

Typical products:– Sauces– Purées– Soups– Pastes

CRYOLINE® CS compact spiral freezerThe CRYOLINE® CS, with its patented, self-stacking spiral belt and its relatively small footprint of only 2.5 x 3.4 m, is capa-ble of freezing and cooling large quantities of food products. The unique design (the body of the freezer is built around the belt) uses the coolant very effi ciently. The self-stacking belt also minimises the possibility of production stops due to belt jams. Unlike most other spiral freezers, this unit can be transported to the production site in one piece for rapid installation and immediate start-up.


convenience foods– Bakery products


How to use little space for big benefi ts. Special freezing and cooling equipment.

CRYOLINE® TD triple-deck freezerThe CRYOLINE® TD is an in-line tunnel freezer which is used for free-rolling products that can be dropped from one belt to another without damaging. The unit has three belts within an insulated casing. The product travels along the top belt fi rst, then drops on and travels along a second and third belt before moving out of the freezer. This process keeps the product in the freezer for a longer time (in comparison with the simple in-line tunnel freezer), signifi cantly increasing the cooling capacity while using a relatively small space.

Typical products:– Pasta– Diced meat– Shrimps

CRYOLINE® SP spiral freezersWhen a high capacity is required and there is no space for a long (or several) tunnel freezer(s), the CRYOLINE® SP is the ideal equipment. It is capable of freezing and cooling a wide range of different products from pizzas to ice cream to packed ready meals. The products enter on the low level and travel along the spiral belt until emerging at the top level, which gives them enough time to freeze (or cool) properly. There are many different available sizes of this model, which can be customised for specifi c requirements.

Typical products:– Meat and meat products– Ready meals and other

convenience foods– Fish and seafood– Dairy products– Bakery products

CRYOLINE® RF rotary freezerThe CRYOLINE® RF is an in-line freezer with a rotating drum specifi cally designed for free-rolling homogenous IQF products. The products are fed into the unit on a fast-moving belt to ensure separation, or pre-frozen in an upstream liquid nitrogen immersion bath. Then, the products roll down the length of the drum to fi nish the freezing. They exit below the drum at the far end, where they can then be processed or packed. This equipment is especially suitable for small, free-rolling products that require gentle handling to ensure high IQF properties (e.g. diced meat, shrimps or similar products).

Typical products:– Pizza toppings– Seafood– Diced meat– Vegetable pieces– Mushrooms


CRYOLINE® AC coating tumblersThe CRYOLINE® AC line was developed in order to meet the demands of the ever-changing food industry. These freezers are used to coat a wide range of basic products (e.g. meat pieces) with different sauces or marinades. The weight of the coating can vary between 10 and 350 % of the initial weight of the basic product. Its consistency ensures the repeatability of the process and the high quality of the fi nal product. The unit can be pre-programmed for many different products, making it easy to operate even by unskilled per-sonnel. This innovative equipment will allow the producer to lead the market with new and attractive products.

Typical products:– Pasta products– Noodles– Paella– Shrimps– Risotto– Vegetables with sauces– Pan-cooked dishes

LIXSHOOTER™Many products need immediate, on-site cooling before fur-ther processing or in order to complete their production. One of the best ways to do this is with the LIXSHOOTER™. With bottom injection of liquid carbon dioxide or liquid nitrogen, a steady temperature can be reached while effi ciently using the cooling power of the refrigerant. Its unique, hygienically designed valve fi ts fl ush to the vessel, preventing product entrapment. The valves can be controlled separately or by the control system of the vessel.

Typical products:– Minced beef before forming– Liquid products– Other meat products before

forming– Confectionary products– Sauces

More equipmentApart from the different models of equipment presented in this brochure, Linde Gas offers a wide range of alternatives for special freezing and cooling requirements for the food industry.

With its innovative concepts, Linde Gas is playing a pioneering role in the global market. As a technology leader, it is our taskto constantly raise the bar. Traditionally driven by entrepreneurship, we are working steadily on new high-quality productsand innovative processes.

Linde Gas offers more. We create added value, clearly discernible competitive advantages, and greater profi tability. Eachconcept is tailored specifi cally to meet our customers’ requirements – offering standardised as well as customised solutions.This applies to all industries and all companies regardless of their size.

If you want to keep pace with tomorrow’s competition, you need a partner by your side for whom top quality, processoptimisation, and enhanced productivity are part of daily business. However, we defi ne partnership not merely as beingthere for you but being with you. After all, joint activities form the core of commercial success.

Linde Gas – ideas become solutions.

Getting ahead through innovation.

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Linde AGLinde Gas Division, Linde Gas Headquarters, Seitnerstrasse 70, 82049 Pullach, GermanyPhone +49.89.74 46-0, Fax +49.89.74 46-12 30, www.linde-gas.com

simply because we love good food. freezing and cooling ... chilling and freezing303_5… · slow...

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